168949517 has 12 divisors (see below), whose sum is σ = 186553248. Its totient is φ = 152889000.

The previous prime is 168949499. The next prime is 168949523. The reversal of 168949517 is 715949861.

168949517 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168949517 - 2⁶ = 168949453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168949117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24392 + ... + 30542.

It is an arithmetic number, because the mean of its divisors is an integer number (15546104).

Almost surely, 2^168949517 is an apocalyptic number.

It is an amenable number.

168949517 is a deficient number, since it is larger than the sum of its proper divisors (17603731).

168949517 is a wasteful number, since it uses less digits than its factorization.

168949517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400 (or 6389 counting only the distinct ones).

The product of its digits is 544320, while the sum is 50.

The square root of 168949517 is about 12998.0582011314. The cubic root of 168949517 is about 552.8224247732.

The spelling of 168949517 in words is "one hundred sixty-eight million, nine hundred forty-nine thousand, five hundred seventeen".